diff --git a/src/ert/dark_storage/common.py b/src/ert/dark_storage/common.py
index fabff023096..72e3963d0db 100644
--- a/src/ert/dark_storage/common.py
+++ b/src/ert/dark_storage/common.py
@@ -63,9 +63,9 @@ def gen_data_keys(ensemble: Ensemble) -> Iterator[str]:
         ):
             if report_steps is None:
                 yield f"{key}@0"
-                return
-            for report_step in report_steps:
-                yield f"{key}@{report_step}"
+            else:
+                for report_step in report_steps:
+                    yield f"{key}@{report_step}"
 
 
 def data_for_key(